S
M
T
W
T
F
S
26
80°
61°
27
80°
60°
28
78°
59°
29
77°
59°
30
75°
58°
31
77°
59°
1
69°
58°
2
69°
59°
3
76°
58°
4
76°
59°
5
75°
58°
6
72°
58°
7
71°
58°
8
75°
57°
9
77°
59°
10
76°
59°
11
78°
59°
12
73°
58°
13
75°
56°
14
76°
57°
15
77°
48°
16
72°
47°
17
66°
45°
18
66°
46°
19
67°
47°
20
67°
55°
21
73°
55°
22
75°
56°
23
74°
56°
24
74°
55°
25
73°
48°
26
68°
47°
27
62°
48°
28
71°
54°
29
74°
55°
30
72°
48°
31
74°
43°
1
63°
46°
2
67°
53°
3
65°
52°
4
72°
44°
5
64°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sioux Lookout
Sioux Lookout's August 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 43° and 61°. The average high for August is 72° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Sioux Lookout. See also: September | October | November.
